Research papers
5,883 papers · NASA NTRS, NTSB, FAA CAMI
NASA NTRS · 1,269 NTSB Safety Studies · 12 NTSB Aircraft Accident Reports · 17 Embry-Riddle Scholarly Commons · 1,993
5,883 matches
- NASA NTRS 2019 GSFC Preprint (Draft being sent to journal)
True Cost of Amateur Clean rooms
This viewgraph document reviews the cost factors for clean rooms that are not professionally built, monitored or maintained. These amateur clean rooms are built because scientist and engineers desire to create a clean ro…
- NASA NTRS 2019 CDMS Conference Proceedings
Fundamental advancements of the future.
General aviation encompasses all aviation except air carrier and military. This includes a broad spectrum of aircraft types ranging from amateur-built aircraft to jet transports, and includes missions such as transportat…
- NASA NTRS 2019 MSFC Conference Paper
Nanosail-D: The Small Satellite That Could!
Three years from its initial design review, NanoSail-D successfully deployed its sail on January 20th, 2011. It became the first solar sail vehicle to orbit the earth and the second sail ever unfurled in space.
- NASA NTRS 2019 GSFC Conference Paper
Integrating NASA Satellite Data Into USDA World Agricultural Outlook Board Decision Making Environment To Improve Agricultural Estimates
The USDA World Agricultural Outlook Board (WAOB) is responsible for monitoring weather and climate impacts on domestic and foreign crop development.
- NASA NTRS 2019 CDMS Conference Paper
Comparison of predicted engine core noise with current and proposed aircraft noise certification requirements
Predicted engine core noise levels are compared with measured total aircraft noise levels and with current and proposed federal noise certification requirements.
- NASA NTRS 2019 CDMS Conference Paper
Comparison of predicted engine core noise with proposed FAA helicopter noise certification requirements
Calculated engine core noise levels, based on NASA-Lewis prediction procedures, for five representative helicopter engines are compared with measured total helicopter noise levels and proposed FAA helicopter noise certif…
- NASA NTRS 2019 CDMS Conference Paper
Comparison of predicted engine core noise with proposed FAA helicopter noise certification requirements
Calculated engine core noise levels, based on NASA-Lewis prediction procedures, for five representative helicopter engines are compared with measured total helicopter noise levels and proposed FAA helicopter noise certif…
- NASA NTRS 2019 CDMS Conference Paper
Comparison of predicted engine core noise with current and proposed aircraft noise certification requirements
Predicted engine core noise levels for subsonic CTOL aircraft engines are compared with measured total aircraft noise levels and to current and proposed federal noise certification requirements.
- NASA NTRS 2019 GRC Conference Paper
A Noise and Emissions Assessment of the N3-X Transport
Analytical predictions of certification noise and exhaust emissions for NASA's N3-X - a notional, hybrid wingbody airplane - are presented in this paper.
- NASA NTRS 2019 CDMS Conference Paper
The effect of ambient conditions on the emissions of an idling gas turbine
Changes in ambient conditions - pressure, temperature, and humidity - affect the exhaust emissions of a gas turbine engine. Such variations must be compensated for during engine certification.
- NASA NTRS 2019 LaRC Conference Paper
The Dangers of Failure Masking in Fault-Tolerant Software: Aspects of a Recent In-Flight Upset Event
On 1 August 2005, a Boeing Company 777-200 aircraft, operating on an international passenger flight from Australia to Malaysia, was involved in a significant upset event while flying on autopilot.
- NASA NTRS 2019 CDMS Conference Paper
From an automated flight-test management system to a flight-test engineer's workstation
The capabilities and evolution is described of a flight engineer's workstation (called TEST-PLAN) from an automated flight test management system.
- NASA NTRS 2019 CDMS Conference Proceedings
Description and Flight Test Results of the NASA F-8 Digital Fly-by-Wire Control System
A NASA program to develop digital fly-by-wire (DFBW) technology for aircraft applications is discussed. Phase I of the program demonstrated the feasibility of using a digital fly-by-wire system for aircraft control throu…
- NASA NTRS 2019 CDMS Conference Proceedings
Analyses of flight model spacecraft performance during thermal-vacuum tests.
Malfunction data from the thermal-vacuum tests of 39 flight-model spacecraft have been analyzed. These data are compared to the data listed in the 1968 Technical Note, NASA TN D-4908, 'Time Required for an Adequate Therm…
- NASA NTRS 2019 JSC Conference Paper
Simulation of Malfunctions for the ISS Double-Gimbal Control Moment Gyroscope
This paper presents a simplified approach to simulation of malfunctions of the Control Moment Gyroscope (CMG) on board the International Space Station (ISS).
- NASA NTRS 2019 ARC Contractor Report (CR)
Pilot Non-Conformance to Alerting System Commands
This research project examined the effects of consonance between cockpit displays and alerting system as a technique to encourage pilots to conform to alerting system commands.
- NASA NTRS 2019 LaRC Conference Paper
Collision Avoidance for Airport Traffic Simulation Evaluation
A Collision Avoidance for Airport Traffic (CAAT) concept for the airport Terminal Maneuvering Area (TMA) was evaluated in a simulation study at the National Aeronautics and Space Administration (NASA) Langley Research Ce…
- NASA NTRS 2019 ARC Technical Memorandum (TM)
A Cockpit Display Designed to Enable Limited Flight Deck Separation Responsibility
Cockpit displays need to be substantially improved to serve the goals of situational awareness, conflict detection, and path replanning, in Free Flight.
- NASA NTRS 2019 CDMS Conference Paper
Who or what saved the day? A comparison of traditional and glass cockpits
This study examined incidents reported to NASAs Aviation Safety Reporting System from a different perspective: rather than focusing on the factors contributing to or causing incidents, this study concentrated on who and …
- NASA NTRS 2019 LaRC Preprint (Draft being sent to journal)
Flight Test Comparison Between Enhanced Vision (FLIR) and Synthetic Vision Systems
Limited visibility and reduced situational awareness have been cited as predominant causal factors for both Controlled Flight Into Terrain (CFIT) and runway incursion accidents.
- NASA NTRS 2019 LaRC Preprint (Draft being sent to journal)
Flight Testing an Integrated Synthetic Vision System
NASA's Synthetic Vision Systems (SVS) project is developing technologies with practical applications to eliminate low visibility conditions as a causal factor to civil aircraft accidents while replicating the operational…
- NASA NTRS 2019 LaRC Preprint (Draft being sent to journal)
Augmentation of Cognition and Perception Through Advanced Synthetic Vision Technology
Synthetic Vision System technology augments reality and creates a virtual visual meteorological condition that extends a pilot's cognitive and perceptual capabilities during flight operations when outside visibility is r…
- NASA NTRS 2019 LaRC Preprint (Draft being sent to journal)
Pathway Concepts Experiment for Head-Down Synthetic Vision Displays
Eight 757 commercial airline captains flew 22 approaches using the Reno Sparks 16R Visual Arrival under simulated Category I conditions.
- NASA NTRS 2019 JSC Presentation
Space Shuttle Upgrades Advanced Hydraulic Power System
Three Auxiliary Power Units (APU) on the Space Shuttle Orbiter each provide 145 hp shaft power to a hydraulic pump which outputs 3000 psi hydraulic fluid to 41 hydraulic actuators.
- NASA NTRS 2019 JSC Presentation
Failure Analysis of T-38 Aircraft Burst Hydraulic Aileron Return Line
During maintenance troubleshooting for fluctuating hydraulic pressures, a technician found that a right hand aileron return line, on the flight hydraulic side, was ruptured (Fig. 1, 2).
- NASA NTRS 2019 ARC Conference Paper
Level of Automation and Failure Frequency Effects on Simulated Lunar Lander Performance
A human-in-the-loop experiment was conducted at the NASA Ames Research Center Vertical Motion Simulator, where instrument-rated pilots completed a simulated terminal descent phase of a lunar landing.
- NASA NTRS 2019 GRC Presentation
Nature-Inspired Motivation for Developing Self-Healable Electrical Insulation
Polymeric aircraft electrical insulation normally degrade by partial discharge with increasing voltage, which causes excessive localized Joule heating in the material and ultimately leads to dielectric failure of the ins…
- NASA NTRS 2019 LaRC Conference Paper
Ultrasonic Inspection to Quantify Failure Pathologies of Crimped Electrical Connections
Previous work has shown that ultrasonic inspection provides a means of assessing electrical crimp quality that ensures the electrical and mechanical integrity of an initial crimp before the installation process is comple…
- NASA NTRS 2019 JPL Preprint (Draft being sent to journal)
Elimination of Potential Electrical Stress During EMC (CS01) Testing
This viewgraph presentation reviews possible ways to eliminate electrical stress during Electromagneticic Compatibility (EMC) testing. The presentation reviews tests that have had problems due to electrical stress.
- NASA NTRS 2019 MSFC Reprint (Version printed in journal)
Transient Analysis of X-34 Pressurization System
Two transient operational modes of the X-34 pressurization system were analyzed using the ROCket Engine Transition Simulation (ROCETS) program. The first operational mode considers the normal operation.
- NASA NTRS 2019 GRC Conference Paper
Electrical Pressurization Concept for the Orion MPCV European Service Module Propulsion System
The paper presents the design of the pressurization system of the European Service Module (ESM) of the Orion Multi-Purpose Crew Vehicle (MPCV).
- NASA NTRS 2019 CDMS Conference Paper
Computer controlled vent and pressurization system
The paper illustrates how the Centaur space launch vehicle airborne computer, which was primarily used to perform guidance, navigation, and sequencing tasks, was further used to monitor and control inflight pressurizatio…
- NASA NTRS 2019 CDMS Conference Paper
Computer controlled vent and pressurization system
The Centaur space launch vehicle airborne computer, which was primarily used to perform guidance, navigation, and sequencing tasks, was further used to monitor and control inflight pressurization and venting of the cryog…
- NASA NTRS 2019 KSC Conference Paper
NASA Prototype All Composite Tank Cryogenic Pressure Tests to Failure with Structural Health Monitoring
This Paper will describe the results of pressurization to failure of 100 gallon composite tanks using liquid nitrogen. Advanced methods of health monitoring will be compared as will the experimental data to a finite elem…
- NASA NTRS 2019 LaRC Conference Paper
Transonic Experimental Observations of Abrupt Wing Stall on an F/A-l8E Model
A transonic wind tunnel test of an 8% F/A-18E model was conducted in the NASA Langley Research Center (LaRC) 16 ft Transonic Tunnel (16-ft TT) to investigate on-surface flow physics during stall.
- NASA NTRS 2019 LaRC Conference Paper
Transonic Experimental Observations of Abrupt Wing Stall on an F/A-18E Model (Invited)
A transonic wind tunnel test of an 8% F/A-18E model was conducted in the NASA Langley Research Center (LaRC) 16 ft Transonic Tunnel (16-ft TT) to investigate on-surface flow physics during stall.
- NASA NTRS 2019 ARC Preprint (Draft being sent to journal)
Cockpit Interruptions and Distractions: Effective Management Requires a Careful Balancing Act
Managing several tasks concurrently is an everyday part of cockpit operations. For the most part, crews handle concurrent task demands efficiently, yet crew preoccupation with one task to the detriment of performing othe…
- NASA NTRS 2019 ARC Presentation
Workload and Performance in Air Traffic Control: Exploring the Influence of Levels of Automation and Variation in Task Demand
In air traffic control, task demand and workload have important implications for the safety and efficiency of air traffic. Task demand is dynamic, however, research on demand transitions and associated controller percept…
- NASA NTRS 2019 ARC Conference Paper
Prediction of Traffic Complexity and Controller Workload in Mixed Equipage NextGen Environments
Controller workload is a key factor in limiting en route air traffic capacity. Past efforts to quantify and predict workload have resulted in identifying objective metrics that correlate well with subjective workload rat…
- NASA NTRS 2019 ARC Conference Paper
Multifactor Interactions and the Air Traffic Controller: The Interaction of Situation Awareness and Workload in Association with Automation
Air traffic controllers (ATCOs) must maintain a consistently high level of human performance in order to maintain flight safety and efficiency.
- NASA NTRS 2019 ARC Conference Paper
The Relationship Between Workload and Performance in Air Traffic Control: Exploring the Influence of Levels of Automation and Variation in Task Demand
In an air traffic environment, task demand is dynamic. However, previous research has largely considered the association of task demand and controller performance using conditions of stable task demand.
- NASA NTRS 2019 ARC Conference Paper
Using Neural Networks to Explore Air Traffic Controller Workload
When a new system, concept, or tool is proposed in the aviation domain, one concern is the impact that this will have on operator workload.
- NASA NTRS 2019 LaRC Conference Paper
Surveillance Range and Interference Impacts on Self-Separation Performance
Self-separation is a concept of flight operations that aims to provide user benefits and increase airspace capacity by transferring traffic separation responsibility from ground-based controllers to the flight crew.
- NASA NTRS 2019 GRC Conference Proceedings
Proceedings of the Fourth Integrated Communications, Navigation, and Surveillance (ICNS) Conference and Workshop
The Integrated Communications, Navigational and Surveillance (ICNS) Technologies Conference and Workshop provides a forum for Government, industry, and academic communities performing research and technology development …
- NASA NTRS 2019 ARC Conference Paper
An Evaluation Methodology for Traffic Awareness Displays
An evaluation methodology for traffic awareness displays for helicopters and other vertical/short takeoff aircraft was developed. Pilots of vertical/short takeoff aircraft wil1 require more traffic information than would…
- NASA NTRS 2019 ARC Conference Paper
Measurement of Temporal Awareness in Air Traffic Control
Temporal awareness, or level 3 situation awareness, is critical to successful control of air traffic, yet the construct remains ill-defined and difficult to measure.
- NASA NTRS 2019 ARC Conference Paper
Pilot and Controller Workload and Situation Awareness with Three Traffic Management Concept
This paper reports on workload and situation awareness of pilots and controllers participating in a human-in-the-loop simulation using three different distributed air-ground traffic management concepts.
- NASA NTRS 2019 ARC Conference Paper
Conflict Resolution Automation and Pilot Situation Awareness
This study compared pilot situation awareness across three traffic management concepts. The Concepts varied in terms of the allocation of traffic avoidance responsibility between the pilot on the flight deck, the air tra…
- NASA NTRS 2019 ARC Conference Paper
Effects of Automation Types on Air Traffic Controller Situation Awareness and Performance
The Joint Planning and Development Office has proposed the introduction of automated systems to help air traffic controllers handle the increasing volume of air traffic in the next two decades (JPDO, 2007).
- NASA NTRS 2019 ARC Conference Paper
Urban Air Mobility Airspace Integration Concepts and Considerations
Urban Air Mobility (UAM) - defined as safe and efficient air traffic operations in a metropolitan area for manned aircraft and unmanned aircraft systems - is being researched and developed by industry, academia, and gove…